Risk Assessment of Single Debris Flow Based on Intensity Theory

XU Ji-wei; ZHANG Mao-sheng; FAN Zhong-jie; JIA Jun; GAO Bo

doi:10.13961/j.cnki.stbctb.2014.03.028

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Risk Assessment of Single Debris Flow Based on Intensity Theory

- Risk Assessment of Single Debris Flow Based on Intensity Theory
- Bulletin of Soiland Water Conservation Vol. 33, Issue 3, Pages: 145-149(2014)
- 作者机构：
  
  1. 长安大学地质工程与测绘工程学院,陕西,西安,710054
  2. 国土资源部黄土地质灾害重点实验室中国地质调查局西安地质调查中心,陕西,西安,710054
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2014.03.028
  CLC：
- Published：2014
- 稿件说明：
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XU Ji-wei, ZHANG Mao-sheng, FAN Zhong-jie, et al. Risk Assessment of Single Debris Flow Based on Intensity Theory[J]. Bulletin of Soiland Water Conservation, 2014, 33(3): 145-149.
DOI：

XU Ji-wei, ZHANG Mao-sheng, FAN Zhong-jie, et al. Risk Assessment of Single Debris Flow Based on Intensity Theory[J]. Bulletin of Soiland Water Conservation, 2014, 33(3): 145-149. DOI： 10.13961/j.cnki.stbctb.2014.03.028.

摘要

以陕西省商洛市山阳县红椿沟作为研究对象

采用定量计算和数据归一化处理的方法

提出强度指数的概念

对泥石流风险计算公式进行了拓展

使其可以表征泥石流规模及可能破坏能力。同时对不同降雨条件下的红椿沟泥石流风险进行了评估。研究表明

6 h降雨量达到198.4 mm及以上时红椿沟发生泥石流的概率为100%。日降雨量r=37.19 mm

泥石流风险低;r=64.34 mm

泥石流风险中;r=104.94 mm

泥石流风险高;r=282.74 mm

泥石流风险很高。

Abstract

Risk assessment of debris flow in the Hongchun Gully of Shanyang County

Shangluo City

Shaanxi Province was studied. Risk assessment of debris flow under different rainfall conditions was carried out by employing the methods of quantitative calculation and data normalization. Intensity index was introduced to characterize the scale and potential ability of damage. Results show that the probability of debris flow occurrence is 100% when rainfall reaches 198.4 mm or more in 6 h. The level of debris flow risk is low when daily rainfall (r) reaches 37.19 mm; the level is middle when the r is 64.34 mm; the level is high when the r is 104.94 mm; and the level is very high when the r is 282.74 mm.

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references

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